PROCESS OF EXTRACTION OF WELL FLUID Russian patent published in 2002 - IPC

FIELD: production of liquid mineral resources, bottom-hole pumping. SUBSTANCE: process includes placement of bottom-hole equipment if well at rational depth and oil pumping into gathering system. Downhole pumping equipment is used to form periodic hydrodynamic pulses and pump operation under cyclic condition of regular production of fluid. Pump capacity is chosen from expression П₁≫П₂, where П₁ is rated productivity of pump; П₂ is anticipated yield of fluid. Pump is placed at depth securing least specific consumption per ton of produced well product under cyclic operation. Time of operation of pump under cycle of regular production is set equal to functional of boundary condition of pump operation, time, rate of filling of hole clearance and is found by analytical dependence. EFFECT: optimized fluid production with increase of total well production rate, speed of fluid in pool and output of downhole pumping installation. 4 dwg, 1 tbl